from django.db import models

class BaseModel(models.Model):

    create_time = models.DateTimeField(auto_now_add=True, verbose_name="创建时间")
    update_time = models.DateTimeField(auto_now=True, verbose_name="更新时间")
    class Meta:
        abstract = True # 说明是抽象模型类, ⽤于继承使⽤，数据库迁移时不会创建BaseModel的表